.top {
    min-width: 1200px;
    margin: 0 auto;
    height: 360px;
    background: center top no-repeat;
    background-image: url('https://img.crawler.qq.com/lolwebschool/0/JAutoCMS_LOLWeb_640ec4bebaca714fdf3ba6ca9023ad0f/0');
}

.nav {
    height: 50px;
    line-height: 50px;
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-evenly;
}

.nav li {
    list-style: none;
    color: white;
}